Operational significance of discord consumption

T. Symul, H. M. Chrzanowski, S. Assad, P. K. Lam, T. C. Ralph, M Gu, Kavan Modi, V. Vedral

Research output: Contribution to conferenceAbstract


For many years, the notion of quantum correlations was equated with the notion of quantum entanglement. The wide range of quantum protocols whose extra-powers over classical protocol were shown to originate from quantum entanglement mostly motivated this. For example, it was shown that for certain class of problems, a quantum computer could provide exponential speed-up over its classical counterpart, given that it relied on quantum entangled resources. Recently, however, the requirement of possessing entanglement to perform efficient quantum computation has been questioned both theoretically [1] and experimentally [2]. It appears that a non-classical quantity called quantum discord [3] is all that is required.
Original languageEnglish
Number of pages1
Publication statusPublished - 2013
Externally publishedYes
EventInternational Quantum Electronics Conference - Munich, Germany
Duration: 12 May 201316 May 2013
Conference number: 13


ConferenceInternational Quantum Electronics Conference
Abbreviated titleIQEC 2013

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